Not having a company website, or having an outdated website that looks like from the 20th century, is arguably the worst thing you can do to your business these days. On the other hand, investing in web presence is less expensive and most effective way of advertising these days. Any kind of website is better than no website at all. At minimum, you should have few pages that presents your company and product/service and at least one way potential clients can contact you.
Depending on business, needs and budget, you can choose one of website types:
Additionally, there are two options for design:
The amount of work and changes on existing theme (colors, layout, images, etc) varies, depending on how much you wish your design to differ from the original.